Gnoosic - Even if you don't know what you are looking for - gnod will find it.
Logo Foundry - Logo Foundry is a professional Logo Design Suite App for Android and iOS that let's you create professional branding for your business in Minutes.
Musicroamer - A visual Pandora for discovering new music
Looka - Make a logo you’ll love with Looka Logo Maker.
TasteDive - TasteDive recommends similar music (musicians, bands), movies, TV shows, books, authors and games, based on what you like.
Canva Logo Maker - Create your own custom logos without having to hire a designer with Canva's impressively easy to use logo maker. Completely free, completely online.